大口徑螺旋風(fēng)管計(jì)算要素及其材質(zhì)是否與口徑有關(guān)

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1.大口徑螺旋風(fēng)管，其在進(jìn)行計(jì)算時(shí)，在計(jì)算要素上，是否與普通的螺旋風(fēng)管一樣？

1. Is the calculation element of large-diameter spiral air ducts the same as that of ordinary spiral air ducts?

大口徑螺旋風(fēng)管，其在進(jìn)行計(jì)算時(shí)的計(jì)算要素，從角度來講，與普通的螺旋風(fēng)管是一樣的，都是為流量、單位摩擦阻力、雷諾數(shù)和摩擦阻力系數(shù)這四個(gè)，其中的流量，又可以是為風(fēng)量。而且，對這一點(diǎn)，應(yīng)有正確認(rèn)識，并牢記于心。

From a professional perspective, the calculation elements for large-diameter spiral air ducts are the same as those for ordinary spiral air ducts, which are flow rate, unit frictional resistance, Reynolds number, and frictional resistance coefficient. The flow rate can also be air volume. Moreover, it is important to have a correct understanding of this and keep it in mind.

2.為何大口徑螺旋風(fēng)管能保證在1.5倍工作壓力下，其接縫處不會出現(xiàn)開裂這一問題？

Why can large-diameter spiral air ducts ensure that there will be no cracking at their joints under 1.5 times the working pressure?

這個(gè)問題，如果讓技術(shù)人員來回答的話，那么，它們給出的具體答案，是為：因?yàn)?，大口徑螺旋風(fēng)管，其與普通的螺旋風(fēng)管一樣，其接縫是周向的，因此接縫強(qiáng)度要高于徑向的直縫強(qiáng)度，而且要高很多，所以，在1.5倍的工作壓力下，其能夠保證不出現(xiàn)開裂這一問題。

If professional technicians were to answer this question, their specific answer would be: because large-diameter spiral air ducts, like ordinary spiral air ducts, have circumferential seams, so the seam strength is higher than the radial straight seam strength, and much higher. Therefore, under 1.5 times the working pressure, they can ensure that cracking does not occur.

3.大口徑螺旋風(fēng)管，其適合在大口徑管道中使用嗎？此外，其材質(zhì)是否和口徑大小有關(guān)？

3. Is large-diameter spiral air duct suitable for use in large-diameter pipelines? In addition, is its material related to the caliber size?

大口徑螺旋風(fēng)管，其適合在大口徑管道中使用，因?yàn)?，這一種風(fēng)管是用材料進(jìn)行卷制并一次成型的，所以，適合在大口徑管道中使用。而且，其的耐壓性能，也是非常好的。

Large diameter spiral air ducts are suitable for use in large diameter pipelines because they are rolled and formed in one go using materials. Therefore, they are suitable for use in large diameter pipelines. Moreover, its voltage resistance performance is also very good.

大口徑螺旋風(fēng)管的材質(zhì)，其與口徑大小是否有關(guān)，從角度來講，這兩個(gè)是沒有任何關(guān)系的，而且，是這一種螺旋風(fēng)管的不同方面，所以，在其口徑大小的確定上，是不需要考慮風(fēng)管材質(zhì)這一具體方面的，可根據(jù)實(shí)際情況和使用要求，選擇合適材質(zhì)。

The material of large-diameter spiral air ducts is not related to the diameter from a professional perspective, and they are different aspects of this type of spiral air duct. Therefore, in determining the diameter size, there is no need to consider the specific aspect of air duct material. Suitable materials can be selected according to the actual situation and usage requirements.